{"solveTimelines":{"days":180,"note":"code length only — your source is never stored"},"sessionEvents":{"days":365,"note":"hint requests and outcomes"},"billingLedger":{"days":730,"note":"kept for billing and tax records"},"usageCounters":{"days":400,"note":"quota tallies"},"skillMap":{"days":null,"note":"derived counters, kept until you delete your account"},"deleteAccount":"DELETE /me removes everything immediately"}